D defs.my
Entry 1 sense Webster, 1913

bear jam

/bĕr jăm/ · IPA
01 n. A traffic jam caused by tourists stopping to look at bears near the road; -- a phenomenon once common in Yellowstone Park, Wyoming.
  1. 1.
    A traffic jam caused by tourists stopping to look at bears near the road; -- a phenomenon once common in Yellowstone Park, Wyoming.[Colloq.]